Method of and mechanism for superimposing a sheet upon and attaching it to a selected book section or the like in a sheet pasting machine



J1me 1933. o. KLEINSCHMIT El AL 1,912,527 METHOD OF AND MECHANISM FORSUPERIMPOSING' A SHEET UPON AND ATTACHING IT TO A SELECTED BOOK SECTIONOR THE LIKE IN A SHEET PASTING MACHINE Filed May 27, 19:51 3Sheets-Sheet 1 0 10M Q m WNW 0 if I 4 June 6, 1933. o. KLEINSCHMIT ET AL1,912,527 METHOD OF AND MECHANISM FOR SUPERIMPOSING A SHEET UPON ANDATTACHING IT- TO A SELECTED BOOK SECTION OR THE LIKE IN A SHEET PASTINGMACHINE Filed May 27, 1931 3 Sheets-Sheet 2 0 k ei'm/salmz l 1,?l/vajfer. ez'ujer,

June 6, 1933. o. KLEINSCHMIT ET AL 1,912,527. METHOD OF AND MECHANISMFOR SUPERIMPOSING A SHEET UPON AND ATTACHING-IT TO A SELECTED BOOKSECTION OR THE LIKE IN A SHEET PASTING MACHINE Filed May 27, 1931 3Sheets-Sheet 3 Patented June 8, 1933 PATENT OFFICE UNITED STATES OSCARxnmscmn'r WALTER stream, I unzrsrmwrrz, 01mm, ASSIGN'ORS 1'0 61331113113Banana, 0! LEIPZIG-PLAGWI'IZ, Gm

IMHO!) 02 AND 1mm: FOB B'UPIRIIPOBIRG A sum UPON AND AT'I'AOHDTG 1'1 TOA. SELECTED 300! SECTION 01 ran L113 111 A. sm'r PAS'HING momApplication fled Kay 87, 1,81, Serial Io. 540,440, and in GermanySeptember 10, 1980.

The present invention relates to sheet pasting machines and is moreparticularly concerned with such machines in which paste is applied --tothe requisite parts of selected sheets or book sections for the purposeof connecting the latter together.

In the production of lllustrated books or similar printed works of artin the graphlc printing industry, it is frequently necessary ordesirable to place a protecting sheet over each of the illustrationswhich may, for instance, comprise multi-colour plate im ressions.Frequently in the art, also, suc an illustration is produced separatelyand, instead of being bound with the remaining sheets of the book, it ismounted on a sheet provided in the book for this purpose. In these andsimilar cases, the sheet to be separately attached is usuall smallerthan the book size and thus lies ack more or less from the binding edgeor head of the book.

@perations of the kind above described have hitherto necessitated highlyskilled manual work and the present invention has for its object toprovide a method of effecting the operation by mechanical means, andmoreover in a neat accurate and clean manner.

According to the method of this invention, individual sheets are fedfrom different planes, one sheet is superimposed upon the other duringthe joint eed thereof, and subsequently, adhesive is applied to theunderface of the superimposed sheet thereby connecting the sheetstogether.

In order that the invention may be better understood we will ifowdescribe, by way of example, two constructional embodiments of theinvention with reference to the accompanying drawings in which theconstructions are illustrated in a more or less diagrammatical manner.

Fig. 1 shows in side elevation a sheet pasting machine.

Fig. 2 ia plan view of the sheet-feed table forming part of the machine.

Fig. 3 is a sectional View taken on line III-III of Fig. 2.

Fig. dis a transverse sectional view-taken on line IVIV of Fig. 2.

Fig. 5 shows drawn to a larger scale a ig. 6 shows dig ammatically, anexam- 7' ple of superimpose sheets, one of the said sheets beingattached to the other along one 55 ed e thereof, and

ig. 7 is a detail view showing the maskin shield or sheet-edgedeflecting member.

eferring to Fig. 1, a combined la table and feed table 10 suitablysupporte upon a framework or similar structure 11 is positioned adjacentto, or built on to one end of the main frame of the pastin machine. Thefeed table (Figs. 1, 2 and 3 comprises lateral side guides 12 and 13,adjustabl mounted on the supporting framework an ada ted to guide thesheet a (Fig. 6), upon w ich the second sheet bis subsequently im osed.A transverse member 14, arranged to reciprocated longitudinally of thefeed table by suitable driving means (not shown), carries fingers orabutments 15, 16 and 17, adjustably mounted thereon. The fingers 15 and16 are arranged to engage the rear edge of a sheet a laid upon the table10 between the side guides or lays 12 and 13, while the finger 17engages the rear edge of the sheet I). The sheet a is positioned on thefeed table in the plane indicated by the chaindotted line I-I which inthis construction is horizontal, while the sheet I) is positioned abovethe sheet a and lies at an angle to the latter, in a plane indicated bythe chaindotted line IIII. The sheet 6 is supported on an auxiliary laytable and feed table 18 which is set at an angle to the feed table 10and provided with adjustable side lays or guides 19 and 20. The plane IIintersects the plane I at a point slightly ahead of the mouth formed bythe converging feed tables 10 and 18. The guide 19 is curved at that endwhich faces the moving sheet a to provide means for smoothingthe latterif it should become buckled, and the other side guide 20 is providedwith an upturned flange 20a against which the rear end of the sheet babuts when laid on the table 18. By this arrangement of the auxiliaryfeed table 18,

a comparatively large clearance between the two sheets is provided atthe point at so that no jammin or confusion of the res ive sheets a an 6is occasioned durm t feed thereof. The supporting surface the table 18is recessed as shown at 18a (Fig. 2) for the 5 pur se hereinafterdescribed.

e fin r or abutment 17 is attached to a short to 17a which is adapted tobe ad- 'ustably mounted in the upper part ofthe abutment 16 and is heldtherein by a suitable set screw. By thus positioning the abutment 17 itis aligned with the recess 18a in the table 18 which latter, in thisembodiment of the invention, is ositioned to one side of the main feedtable 10. The sheet engaging abutments 15, 16, 17 are thus movedtogether at the same speed and in the same direction, being arranged inpredetermined and ad- ,justable position relatively to each other.

The main frame of the machine is provided with superimposed conveyorbelts or tapes 22, 23 arranged in known manner to run over a series ofrollers, to provide positive sheetconveying means co-operating with anadhesive applying device (Figs. 1 and 7) which latter is arranged in thecentre of the main frame intermediate the run of the conveyor tapes. Aswill be seen from Fig. 7, the lower conveyor member 23 may comprise abelt of suflicient width to extend completely across the conveyor devicewhile the upper conveyor member comprises two belts interposed betweenwhich is a narrow longitudinal plate 27 adapted to support the innerlateral edge of the upper sheet I) when the latter is superimposed onthe sheet a. The member 27 extends from the feed table 18 to theadhesive applying device and thus prevents the said inner lateral edgeof the sheet 6 during this part of its travel from lying upon the sheeta. The adhesive applying device comprises an adhesive supply tank orcontainer 24 and an adhesive appl mg roller or wheel 25 adapted torotate partly in the container and en age some part of the contentsthereof. The w eel 25 is rotatably suspended above the path I of thesheet a and is aligned with the inner lateral edge of the sheet 12 whichis supported upon the member 27, while the remainder of this sheet hasbeen imposed upon the sheet a prior to reaching the adhesive-applyingdevice. Provision is made for rotating the wheel 25 at a speedequivalent to the speed of the conveyor tapes 22 and 23 and in thepresent construction this is done by rigidly mounting the wheel 25 on astub shaft ]our-,

nalled in suitable bearings and carrying on its extremities, followerwheels 26 which latter are adapted to engage the conveyor tapes 22 andthus revolve the wheel 25 at the requisite speed.

Arranged in front of this wheel is a deflecting wall or guide member 27a(Fig. 7) formed as part of the member 27 or attached thereto as desired.The member 27 a' is shaped so as to cause the inner lateral edge of thesheet b to be deflected in an upward direction when approaching theadhesive applying member 25. The underface of this upwardly curvedportion of the sheet 5 time comes into contact with the adjacent side ofthe revolving wheel 25 and thereby receives a strip of paste. In thisembodiment, the deflecting wall 27a is formed with a masking shieldwhich faces the oncoming sheets in order to mask the front half of thewheel 25 from the upturned edge of the sheet I). The adhesive applyingmember which is rotating in the direction of the arrow A (Fi 1) is thusprevented from contacting, during the downward part of its travel, withthe upturned edge of the sheet I) which latter would act as a scraperand thus receive uneven and excessive amounts of adhesive. By arrangingfor the upturned edge of the sheet to contact with the rear or upwardlymoving part of the member 25, the adhesive is wiped on to the underfaceof the sheet as the member 25 is moving away from the said sheet, soensuring the uniformity of the adhesive application. The operation ofthis sheet handling mechanism is as follows:

The sheet a is placed on the table 10 between the lateral guides 12 and13 the latter having been adjusted to engage the lateral edges of thesheet, and so lies in the plane I. The second sheet 12 is placed uponthe table 18 between the guides 19 and 20 which engage the lateral edgesthereof, and thus lies in the plane II (Figs. 3 and 4) During theoperation of the machine, the abutments 12 and 13 which are timed tomove at the same speed as the conveyor tapes 22 and 23 engage the rearedge of the sheet a and move it forward towards the conveyor tapes.After advancing the sheet a through some distance of its travel towardsthe conveyor tapes the upper abutment 17, carried by the abutment 16,reaches and engages the rear edge of the sheet I) which thereupon ismoved forward at the same speed as the sheet a during the advance of theabutment 17 into the recess 18a. The sheet I) is thus moved downwardly,by reason of the inclination of the table 18 and so, during the jointtravel of the sheets, the sheet b is imposed upon the sheet a as shownin Fig. 6. As the sheets are ur ed from the feed tables by the engaginga utments, they are seized and firmly held by the conveyor belts 22, 23by which they are conveyed to the adhesive appllying device. The sheetswhich are thus a vanced jointly, are firmly held along their outerlateral edges while the inner lateral edge of the top sheet I) is leftfreely supported upon the member 27 as the sheets are advanced, the freeinner lateral edge of the sheet I) is engaged by the edge deflectingmember 27a which causes the underface of the deflected edge to engagewith the adhesive appl ing member as above described. During the urtheradvance of the sheets the raised till inner edge of the sheet 6 towhich'adhesive has been applied, is brought down upon the sheet c andpressed thereon in known manner thus attaching the superimposed sheet 12to the under sheet a along the inner lateral edge of the sheet h asshown in Fig. 6.

ln s. modified form of this invention the sheet engaging sbutments maybe arranged to descend to 9. lower plane during their return movementand thus allow the uninterrupted laying-on oi the next sheet a duringthe retern of the ebutments to their initial position. An arrangement ofthis description is shown in Fig. 5.

Arranged on the reciprocating abutment support letemlly adjacentsupports 29. Slidshly mounted in these supports ere rods 32 which theebutmezits 15, iii end i? above Springs 3-9 tend to force these rods 32upwardly whereby rollers 31 iourrioiled the lower ends of the rods 32are caused to engage rails 83 which are provided with adjustable csmfaces 34;, 85. Jonrnelled in the supports 29 moreover, spring plungerpins 36, sdepted to co-operote at one extremity dds with notches 37provided in the rods 32 when the rollers 31 engage the cams 35 that isto se when the ebutments 15, lb see lowered. Preferobly, t l? is mountedon e hinged aim to i to be tripped ii, in descending it should come intocontact with the lower ippers 38 which odjiistoble according to wiltravel of the ebiitments, are adopted to the outer extremity 39 or thepins 38 when member M has reached the end oi its movement. in the nextiorword motion of the member Eldthe grippers 38 first hold the pins 36firmly, thereby with drsvving the ends 36c oi the pins item the notches3?. Since, in the meantime, the rollers 3i have leit the cams 3lsbutments ere novv reised by the sci-ion of the springs end are piecedready to engage the sheet edges. As soon as the pull on the grippers 38is increased, the points 89 ere withdrawn therefrom. Within the limit ofthe travel of the ebutments they are drawn down again when the camiollowers 3i engage the cam surfaces and the point of each plunger pinso re-enters the requisite notch 37 in the rod 32.

ln-the piece of this construction use may be mode of any othermechanically or magnetically operated device for the up and downmovement of the sheet engaging sbutments.

In the above description of this invention, the auxiliary iced table 18has been described as being positioned at an angle to the main ieedtable 10, but it is possible to successfully operate the machine withthe auxiliary table positioned horizontally to or approximatelyhorizontally to the main feed table 10.

By mounting the abutment 17 in an adjustable manner upon the abutment16, it is possible to adjust readily the distance d (Fig. 6) between theedges of the sheets a and b.

The scope of this invention is not necessarily limited to the specificconstructional examples above described, since other forms of mechanismmay be readily devised to carry the invention, as defined in theappended claims, into efiect.

We claim:

1. A method of connecting individual sheets in a sheet-pasting machine,which consists in feeding the sheets along paths in different planes,superimposing one sheet on the other during the joint feed thereof,upwsrdly deflecting a portion of the superimposed sheet, applyingadhesive to the underside of said deflected portion, and bringing thesheets together.

2. A method of sheet-posting as claimed in claim 1., in which theadhesive is applied to the underiece oi the upper sheet while theoperative surziece of e movable adhesive applying member is moving awayfrom the said sheet.

8. In s sheet-pssting machine adapted to connect individual sheetstogether, the combination of :1 main feed teble, sheet conveyor-members, means for moving towards the sheet conveyor memheis e sheetsupported on the main feed toble, en ouxilisry feed table convergingtowards the said msinfeed table, means for moving towerds the seid sheetconveyor members and first mentioned sheet a. sheet supported by thesaid auxiliary feed table, means for predetermining the positioning ofthe sheets relatively to each other during the movement thereof, andmeans for applying adhesive to one of said sheets.

4. In sheet-pasting machine adapted to connect individual sheetstogether, the combination of e main feed table, an auxiliary teed table,means for guiding a sheet placed on the main feed table, means forguiding a sheet placed on the auxiliary feed table, sheet conveyormembers, means for moving towards the said sheet conveyor members thesheet supported on the feed table, means for moving towards the saidsheet conveyor members and first mentioned sheet the sheet sup ported onthe auxiliary feed table, and means for applying adhesive to one of saidsheets.

5. In it sheet-pasting machine adapted to connect individual sheetstogether, the combination of a main feed table, adjustable sheet guidesmounted on the main feed table, an auxiliary feed table, adjustablesheet guides mounted on the auxiliary feed table, sheet conveyormembers, means for moving towards the sheet conveyor members a sheetsupported on the main feed table, means associated with the firstmentioned sheet moving means for moving towards the sheet conveyormembers and the first mentioned sheet a second sheet supported on theauxiliary feed table, and means for applying adhesive to one of the saidsheets.

.. 6. In a sheet-pasting machine adapted to connect individual sheetstogether, the combination of a main feed table, an auxiliary feed tablehaving its supporting surface recessed, sheet conveyor members, meansfor moving towards the said sheet conveyor members a sheet placed on themain feed table, a sheet-engaging member associated with the firstmentioned sheet moving means and adapted to engage a sheet supported onsaid auxiliary feed table and to move into the recess in the saidauxiliary feed table, and means for applying adhesive to one of the saidsheets.

7. In a sheet-pasting machine adapted to connect individual sheetstogether, the combination of a main feed table, sheet guides mounted onthe main feed table, an auxiliary feed table, sheet guides mounted onthe auxiliary feed table, a longitudinally reciprocating memberpositioned beneath the main feed table, sheet engaging abutmentsassociated with the main feed table and mounted on the saidreciprocating member, a further sheet engaging abutment associated withthe auxiliary first mentioned sheet engaging abutments means forcarrying to further sheet handling means the sheets fed from the feedtables, and means for applying adhesive to one of the said sheets.

8. In a sheet-pasting machine adapted to connect individual sheetstogether, the provision of a main feed table, an auxiliary feed tablepositioned above the main feed table, sheet pusher members associatedwith the main feed table, ciated with the auxiliary feed table, meansfor conveying towards further sheet handling means separate sheets fedfrom the said feed tables. .and means for applying adhesive to one ofthe said sheets.

9. In a sheet-pasting machine adapted to connect individual sheetstogether, the combination of a main feed table, an auxiliary feed table,sheet conveyor members, an adhesive-applying member, means for feedingsheets from the said feed tables to the said conveyor members, means forsuperimposing upon the sheet fed from the main feed table the sheet fedfrom the auxiliary feed table, means for contacting with theadhesive-applying member the underface of the sald superimposed sheet,and means for brlnging the sheets together.

10. In a sheet-pasting machine adapted to connect individual sheetstogether, the combination of a main feed table, an auxiliary feed table,an adhesive-applying member, means for conveying sheets to and from thesaid adhesive applying member, means for feeding the sheets from thesaid feed tables to the said sheet conveying means, means for the feedtable and mounted on one of the a sheet pusher member asso superimposingupon the sheet fed from the main feed table the sheet fed from theauxiliary feed table, means for deflecting an edge of the saidsuperimposed sheet in order to contact the said deflected sheet edgewith the said adhesive applying member, and means for bringing the saidsheets together.

11. A sheet-pasting machine adapted to connect individual sheetstogether, which includes a movable adhesive applying member, means forprogressing sheets jointly past the adheslve applying member, means fordeflecting the edge of one of the said sheets to enable the undersidethereof to contact with.

the adhesive applying member, and means for pressing upon the adjacentsheet the sheet edge thus supplied'with adhesive.

12. A sheet-pasting machine adapted to connect-individual sheetstogether, which includes a rotating adhesive-applying member,

means for progressing sheets jointly past the adhesive-applying member,means for deflecting the edge of one of the said sheets to enable theunderside thereof to contact with the said adhesive-applyingmember,means for masking part of the moving surface of the adhesive applyingmember, and means for pressing the sheets together duringtheir progressaway from the adhesive applying member.

13. A sheet-pasting machine adapted to connect individual sheetstogether, which includes a main feed table, an auxiliary feed table, areciprocatory member associated with the main feed table, sheet engagingabutments mounted on the said reciprocatory member, sheet conveyingmembers, means'for advancing the said sheet engaging abutments andsheets engaged thereby towards the said sheet conveying members, meansfor returning the said sheet-engaging abutments along a path in a planebelow the level of the said main feed table. a

14. A sheet-pasting machine adapted to connect individual sheetstogether, comprising in combination a main sheet-feed table, adjustablesheet guides mounted on said table, an auxiliary sheet-feed table,adjustable sheet guides mounted on said auxiliary table, a reciprocatorymember positioned beneath said main table, sheet engaging ,membersmounted on the said reciprocatory member and adapted to engage a sheetsupported on the main table, a sheet engaging member mounted on one ofthe first mentioned sheet engaging members and adapted to engage a sheetsupported on the auxiliary feed table, sheet conveying belts, anadhesive-applying device associated with the said conveying belts, meansfor contacting with the adhesive applying device, the requisite portionof a sheet carried by the conveying belts, and means for pressing thesheet thus supplied with adhesive into contact with an adjacent sheet.

15. A sheet-pasting machine adapted to connect individual sheetstogether comprisin in combination, a main sheeteed table, ad ustablesheet guides mounted on said table, an auxiliary sheet-feed table havingits supporting surface recessed and positioned above the main feedtable, adjustable sheet guides mounted on the said auxiliary table,sheet conveying members, a movable member mounted beneath the main feedtable and adapted to be moved towards the sheet conveying members andaway therefrom, sheet engaging abutments adjustablyimounted on the saidmovable member and adapted to engage a sheet supported by the main feedtable a further sheet-engaging abutment adjustably mounted on one of thefirst mentioned abutments and adaptedto engage a sheet supported on thesaid auxiliary fee table and to. deposit it upon the sheet supported bythe main feed table, a movable adhesive-applying member associated withthe said sheet conveying members, means for defleeting out of the planeof its path of travel edge of one sheet conveyed by the sheet conveyingmembers, means for contacting with the adhesive-a plying member theunderface of the deflected edge of the said sheet, and means forpressing onto the ad acent sheet the sheet thus supplied with adhesive.

to. A sheet-pasting machine ada ted to connect individual sheetstogether, w ich includes a main sheet feed table, an auxiliary sheetteed table mounted above the main teed table, a reciprocatory memberarranged beneath the main feed tabie and transverse thereto, at leastone bracket mounted on the said transverse member, a substantiallyverticai rod. slidably mounted in each bracket, sheet engagin abutmentsmounted on the upper extren of each rod, a cam follower mounted on thelower extremity of each rod, a cam faced guide rail adapted to beengaged by the said cam follower, a sprung plunger adapted to engage anotch in the said rod, means for engaging the said spring plunger in thenotch in said rod, means for releasing said plunger from said rod, andmeans for restoring said abutments to the sheet engaging position.

1?. A sheetpasting machine 'ada ted to connect individual sheetstogether, w ich includes a main sheet feed table, adjustable sheetguides associated with said main table, an auxiliary sheet feed table,adjustable sheet guides associated with said auxiliary table, a drivingmember positioned beneath the main food table longitudinally thereof, areciprocatory member mounted thereon and pos1- tioned transversely ofthe said feed tables, at least one bracket adjustably mounted on saidreciprocatory member, a substantially vertical rod slidably mounted ineach bracket, :1 sheet engaging abutment mounted upon the upperextremity of each rod and adapted to engage a sheet supported upon themain feed table, a. further sheet engaging abutment adapted to engagea'sheet supported by the auxiliary table and hingedly secured to asupport adjustabl mounted on one of the first mentioned a utments, a camfollower mounted on the lower extremity of each rod, a cam faced guiderail adapted to be engaged by the said cam follower, a. sprin lungeradapted toengage a'notoh provi e in the said rod, means for engagingsaid spring plunger in the notch in said rod, means for releasing saidspring plunger from said rod,

and means for urging the said rod and abutments carried thereby into theoperative posltion.

18. A sheet-pasting machine adapted to connect individual sheetstogether comprising, in combination, a main sheet-feed table, anauxiliary sheet-feed table placed above said main sheet feed table at anangle thereto, movable sheet conveyor belts, an adhesiveapplying memberpositioned intermediate the length of said belts in the path of travelof the sheets carried thereby, an adhesive container adapted to supplyadhesive to the said adhesive-applying member, means for moving towardsthe said sheet conveying means a sheet supported on the main table,means for feeding a secondary sheet from the said auxiliary table on tothe said sheet, means for advancing the sheets jointly to the saidadhesive applying member, means for deflecting one edge of the secondarysheet away from the surface of the first mentioned sheet, means forcontacting the said deflected sheetedge with the adhesive applyingmember, and means for pressing to the surface of the first mentionedsheet the sheet-edge thus supplied with adhesive.

19. In a sheet-pasting machine adapted to connect individual sheetstogether comprising, in combination, a main sheet-feed table,anauxiliary sheet-feed table placed above the said main sheet-feed tableat an angle thereto, movable sheet conveyor belts, an adhesive applyingmember positioned intermediate the length of said belts, means formoving towards the said sheet conveying belts a sheet supported upon themain feed table, means for feedin a secondary sheet from the auxiliaryfee table on to: the first mentioned sheet, means for reciprocating thesaid sheet moving means, means for deflecting (during their idlemovement) the said sheet-moving means away from the path of travel ofthe said sheets, means for advancing the sheets jointly to the saidadhesive, applying member, means for deflecting one edge of thesecondary sheet away from the surface of the first mentioned sheet,means for contacting the undersurfaceiof the' said deflected sheetedgewith the adhesive applying member, and means for pressing to the surfaceof the first mentioned sheet the sheet-edge thus supplied with adhesive.

20. In a sheet-pasting machine, means for feeding individual sheetsalong paths in different planes and superim osin one sheet on the otherdurin the joint eed reof, means for upwardly eflecting a portion of thesuperim d sheet, an adhesive applying device a apted to 9. ply adhesiveto the underside of said de ected portion ofjsuperimposed sheet, andmeans for bringing said 10 sheets together.

21. In a sheetasting machine as claimed in claim 20, an a hesiveapplying device for applying the adhesive to the underface of the uppersheet while the operative surface of a l movable adhesive appl ingmember ismoving away from the sai sheet.

In testimony whereof we affix our signatures.

OSCAR KLEINSCHMIT. WALTER GEISSLER.

